<template>
  <Mapbox :mapOnLoadCB="mapOnLoadCB"></Mapbox>
</template>

<script>
import {ref} from "vue"
import Mapbox from "@/components/common/Mapbox.component.vue"
import MapboxCommonService from "@/service/map/MapboxCommonService"

export default {
  name: "AddAnimatePoint.component",
  components: {Mapbox},
  setup() {

    let mapStore = ref({});
    let mapOnLoadCB = (map) => {
      mapStore.value = map;
      MapboxCommonService.setCZBP(map, [0, 0], 2)

      let radius = 20;
      const pointOnCircle = (angle) => {
        return {
          "type": "Point",
          "coordinates": [
            Math.cos(angle) * radius,
            Math.sin(angle) * radius
          ]
        };
      }

      // Add a source and layer displaying a point which will be animated in a circle.
      map.addSource('point', {
        "type": "geojson",
        "data": pointOnCircle(0)
      });

      map.addLayer({
        "id": "point",
        "source": "point",
        "type": "circle",
        "paint": {
          "circle-radius": 10,
          "circle-color": "#007cbf"
        }
      });

      const animateMarker = (timestamp) => {
        // Update the data to a new position based on the animation timestamp. The
        // divisor in the expression `timestamp / 1000` controls the animation speed.
        map.getSource('point').setData(pointOnCircle(timestamp / 1000));

        // Request the next frame of the animation.
        requestAnimationFrame(animateMarker);
      }

      // Start the animation.
      animateMarker(0);
    };

    return {
      mapOnLoadCB
    }
  }
}
</script>

<style scoped>

</style>